Application of bituminous linings to concrete surfaces.



il 'N1 ffii smiles PATENT onrion.

nenne wrnnnnnonn on PnILAnnLrnIA, PENNSYLVANIA; Assrsnon 'To THE BARBER MELIATIQN 01s BITUMINOUS LIININGS T CONCRETE SUBFACES.

Specification of Letters intent.

Patented Maf. 12, 1918-.

Application mea January 2, 1915. suini No'. 2 0?.

To @l weer@ may wmeernf i1.; known that I, Henny W'innnnnonn. oi jbilerleiphie, in the eennty' of Philadel-- phie and Mete ef 'ennsyimanie7 have invented certain new and useful improve# ments in the ppiieetien of Bituminous lisation,

i eppiying a bituminous Weil? have invented e die proposed bituminous n@ el ining preness ey widen vliningu is peered Wiiiie not and liquid into *ehe inerepeee 'eetween concrete wall and e temporary' supperting' surface, which is removed after the bituminous iining has set. n, the practice of this process however it is essentiei that the supporting surface shall notedhere to the bituminous substance when set5 and to pi'levent such adhesion I provide the supporting snrace with a peint which eeeompiishes end The' supporting surface is erected substany tielly psreilel te ehe weil to be iined, lazyingaan. interspeee of the tbielmess desired for i ling. The supporting surface may .be for .ed either of metal or wood, and. in'

eitherA inetenee mypeint is applied thereto,

prevents any ediierenee ef `die supporting surface te the bituminous lining.-

'Ehe eeeenipnnying drawing iliustietes the praetiee eff my preeess It shows e-eonerete wall i," 'to which. the bituminous surface or lining-ie 'being eppiied, For this purpose uprights r2, are previded, Wbieh 1n turn maintain in pince e temporr surfeee er meid. 3, sey e beards. To

the surface eti' this meld Wa'llgopposing the vvconcrete weil i, is appliedk my peint 4, While 5, represents tiiebitumineus lining es poured between the concrete weil and the mold wall.

Ordinarily the Inold well is built np `to a v Linings te Generate Surfaces, whereof the supporting convenient partial height, and the bituminous lining poured to nearly that height and allowed to set. The mold wall is then built uphigher yand vanother le er of the bitumiis removed.'A Owing tothe use of t is paint there is not only noi-adhesion renderin the removal of the supporting surface d' cult, butv the bituminous -linin which has set aftgainst it, presents a; smoox andV glossy eurace.

' Havingthus described my' invention, I claim.; 1

Theprooess'of ap iying a bituminous lin-- ing to a. concrete wa whlch consists in covering the surface of a, temporary mold Wall adjacent to the 'concrete wall with a, paste composed of soft song and water; pouring a. bituminous mastic w ile hot and llqud into the interspace between the mold wall and.

the concrete wa1l;` and removing the mold wall after the bituminous .mastic has cooled. In testimony whereof, I have hereunto signed my name, at Philadelphia. Pennsylvenia, this thi-rtiethday of December, 1914:.

- HENRY WIEDERHOLD.

Witnesses: J 'AMES H, BELL, E. L. FULnnnToN. 

